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MLC1770 Series

Shielded Power Inductors

RoHS compliant halogen free
Coilcraft MLC1770 Series power inductors are mechanically rugged and magnetically shielded for use in high-density circuits. Their flat-wire construction provides excellent current handling and exceptionally low DCR, and soft saturation makes them perfect for VRM/VRD applications. 
  • Exceptionally low DC resistance
  • Soft saturation for high peak current handling
  • Magnetic shielding for high-density packaging
  • Ideal for low-voltage, high-current DC-DC converters and VRD/VRM controllers
  • AEC-Q200 Grade 3 (−40°C to +85°C)
Buy Now:
Count Unit price
1 $3.23
100 $2.58
200 $2.25
400 $1.80
1200 $1.57
2400 $1.22
5000 $1.04

For high volume or non-stock items, request a quote.

. in stock, ready to ship today.
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Specifications

Electrical specifications at 25°C.

Part number 1 Inductance (µH) 2
(Tolerance: ±20%)
DCR (mΩ) 3 SRF typ (MHz) 4 Isat (A) 5 Irms (A) 6
typ max 10% drop 20% drop 30% drop 20°C rise 40°C rise
MLC1770-801ME_ 0.80 1.15 1.30 72.0 28.4 49.9 64.9 20.36 28.92
MLC1770-142ME_ 1.4 1.80 2.00 59.0 20.5 35.6 51.4 16.10 24.06
MLC1770-202ME_ 2.0 2.70 3.00 49.0 14.2 24.8 37.0 12.98 19.12
MLC1770-282ME_ 2.8 3.60 4.00 41.0 13.0 22.8 33.8 11.56 15.80
Notes
  1. When ordering, please specify termination and packaging code: e.g. MLC1770-282MEC
  2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using a Coilcraft SMD‑A fixture in an Agilent/HP 4263B LCR meter.
  3. DCR measured at 25°C on a micro-ohmmeter. For other operating temperatures, use this DCR at Temperature calculator.
  4. SRF measured using an Agilent/HP4291A impedance analyzer and an Agilent/HP 16193 fixture.
  5. Isat: DC current at which the inductance drops the specified amount from its value without current. Details
  6. Irms: Current that causes the specified temperature rise from 25°C ambient.

Termination:

  • E = Halogen free component. RoHS compliant tin-silver over copper terminations.
  • T = RoHS tin-silver-copper (95.5/4/0.5). (Special order, added cost)
  • S = non-RoHS tin-lead (63/37). (Special order, added cost)

Packaging:

  • D = 13" machine-ready reel
    EIA-481 embossed plastic tape (400 parts per full reel).
  • B = Less than full reel
    In tape, but not machine-ready. To have a leader and trailer added ($25 charge), use code letter D instead.
Environmental
Environmental:
RoHS compliant , halogen free
Ambient temperature range:
–40°C to +85°C with Irms current
Storage temperature range:
Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Maximum part temperature:
The part may be operated without damage as long its temperature (ambient + self-heating) does not exceed +125°C.
Failures in Time (FIT) / Mean Time Between Failures (MTBF):
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332

Performance curves

Inductance vs. Current

Inductance vs. Frequency

Physical characteristics

mlc1770d.gif
dims_inches_mm.gif

Tape and Reel specification

tapereel_pl.gif

 
Parts per reel Reel dimensions (mm) Tape dimensions (mm) Orientation
13" (330 mm) A B C D E W P Po P1 H T part_or_ac.gif
400 330 100 13 30,4 24,4 24 24 4 2 7,0 0,4

General specification

Core Material:
Iron
Weight:
7.8 - 8.0 g
Packaging:
400 per 13″ reel Plastic tape: 24 mm wide, 0.4 mm thick, 24 mm pocket spacing, 7.0 mm pocket depth

Soldering/Washing

Moisture Sensitivity Level (MSL):
1 (unlimited floor life at <30°C / 85% relative humidity)
Resistance to soldering heat:
Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles
Refer to Soldering Coilcraft Components before soldering.
PCB Washing:
Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. More info.

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